US8920348B2 - Method and device for performing alternating chest compression and decompression - Google Patents

Method and device for performing alternating chest compression and decompression Download PDF

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Publication number
US8920348B2
US8920348B2 US13/631,289 US201213631289A US8920348B2 US 8920348 B2 US8920348 B2 US 8920348B2 US 201213631289 A US201213631289 A US 201213631289A US 8920348 B2 US8920348 B2 US 8920348B2
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plunger
chest
distal end
compression
patient
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US20140094724A1 (en
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Gary Freeman
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Zoll Medical Corp
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Zoll Medical Corp
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Assigned to ZOLL MEDICAL CORPORATION reassignment ZOLL MEDICAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FREEMAN, GARY
Priority to JP2015534508A priority patent/JP2015533552A/ja
Priority to CN201380055420.3A priority patent/CN104755058A/zh
Priority to EP13840819.0A priority patent/EP2900195A4/en
Priority to PCT/US2013/057525 priority patent/WO2014051934A1/en
Publication of US20140094724A1 publication Critical patent/US20140094724A1/en
Priority to US14/576,029 priority patent/US9655809B2/en
Publication of US8920348B2 publication Critical patent/US8920348B2/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H31/00—Artificial respiration by a force applied to the chest; Heart stimulation, e.g. heart massage
    • A61H31/004—Heart stimulation
    • A61H31/006—Power driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H31/00—Artificial respiration by a force applied to the chest; Heart stimulation, e.g. heart massage
    • A61H2031/001—Artificial respiration by a force applied to the chest; Heart stimulation, e.g. heart massage fixed on the chest by suction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/013—Suction cups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic drive
    • A61H2201/1215—Rotary drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic drive
    • A61H2201/123—Linear drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1657—Movement of interface, i.e. force application means
    • A61H2201/1664—Movement of interface, i.e. force application means linear
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2230/00—Measuring physical parameters of the user
    • A61H2230/04—Heartbeat characteristics, e.g. E.G.C., blood pressure modulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
    • A61N1/39—Heart defibrillators
    • A61N1/3968—Constructional arrangements, e.g. casings

Definitions

  • CPR cardiopulmonary resuscitation
  • CPR Cardiopulmonary resuscitation
  • CPR is a well-known and valuable method of first aid used to resuscitate people who have suffered from cardiac arrest.
  • CPR requires repetitive chest compressions to squeeze the heart and the thoracic cavity to pump blood through the body.
  • Artificial respiration such as mouth-to-mouth breathing or a bag mask device, is used to supply air to the lungs.
  • a first aid provider performs manual chest compression effectively, blood flow in the body is about 25% to 30% of normal blood flow.
  • Even experienced paramedics cannot maintain adequate chest compressions for more than a few minutes. Hightower, et al., Decay In Quality Of Chest Compressions Over Time , 26 Ann. Emerg. Med. 300 (Sep. 1995).
  • CPR is not often successful at sustaining or reviving the patient. Nevertheless, if chest compressions could be adequately maintained, then cardiac arrest victims could be sustained for extended periods of time. Occasional reports of extended chest compression efforts (45 to 90 minutes) have been reported, with the victims eventually being saved by coronary bypass surgery. See Tovar, et al., Successful Myocardial Revascularization and Neurologic Recovery , 22 Texas Heart J. 271 (1995).
  • Piston based chest compression systems include the LUCAS® chest compression device (illustrated in Sebelius, et al., Rigid Support Structure on Two Legs for CPR, U.S. Pat. No. 7,569,021(Aug. 4, 2009)) and the THUMPER® chest compression device (illustrated in Barkolow, Cardiopulmonary Resuscitator Massager Pad , U.S. Pat. No. 4,570,615 (Feb. 18, 1986).
  • These chest compression systems include a piston and a motor for repeatedly driving the piston downwardly on the chest, and lifting the piston from the chest to allow the chest to expand under its own natural resistance.
  • a manual CPR assistance device also includes a suction cup on the bottom of a manually operated compression pad. This is also proposed to provide lifting force, through the suction cup, on the anterior surface of the chest during the upstroke of the compression cycle.
  • the devices and methods described below provide for improved attachment of a compression pad of a piston-based chest compression device to a patients chest, to provided improved active compression/decompression CPR.
  • the device includes a compression pad for piston driven chest compression devices that enables and optimizes compression and decompression force.
  • the compression pad includes two or more suction cups, vacuum cups or suckers to engage the surface of the patient's chest and provide improved decompression force to the patient's chest during mechanical CPR.
  • the pressure in each of the suction cup spaces is lower that atmospheric pressure which enables the compression pad to exert some decompression force on the patient's chest.
  • the pressure difference between the atmosphere on the outside of the cup is what keeps the cup adhered to the surface and enables decompression force to be exerted on the patient's chest.
  • the upward force developed by a suction cup is a function of the area of the suction cup.
  • Using multiple suction cups on a compression pad enables the pressure of each suction cup to be kept low while the combined decompression force of all the suction cups of a compression pad is high enough to provide meaningful chest decompression. Balancing the suction force of multiple small suction cups against the total force for all the suction cups on a compression pad eliminates injury to a patient's chest that may occur with a single large suction cup.
  • the suction cups may adopt any useful shape to optimize the number of suction cups on a compression pad and to optimize the decompression force on a patient's chest as well as optimizing the application of compression force to the patient's chest.
  • suction cups facilitates conformance of the suction cups to complex 3-D shapes such as the surface of the patient's chest. Improved surface conformance results in improved sealing of the suction cups to the patient's skin, further enhancing the amount of upward force that can be applied by the device.
  • Multiple suction cups on the distal side of the compression pad enables the decompression force applied by the retraction of the plunger adapter to be limited to prevent dissecting injury to the tissues of a patient's chest.
  • a compression orientation pad may be secured to the patient's chest to provide a readily visible landmark for applying the chest compression, to provide a smooth surface for achieving suction to enable decompression force to be applied, and to incorporate ECG and defibrillation electrodes and other suitable rescue components.
  • any smooth sticker or adhesive sheet may be used as a landmark and to provide a smooth surface for optimizing the suction of the compression pad against the patient's chest.
  • a detachable plunger adapter and a cooperating compression pad adhered via suction to the patient's chest may be used.
  • Detachment mechanisms between the plunger adapter and the compression pad which can be readily limited in the amount of upward force which might be applied include magnetic or frictional attachment between the compression pad and the adapter. The attachment force between the plunger adapter and the compression pad can thus be predetermined and limited.
  • FIG. 1 is a front view of a piston driven chest compression device with a suction compression pad and a cross section of a patient's chest showing landmark skeletal structures.
  • FIG. 2 is a cross section of the chest compression device of FIG. 1 taken along A-A with a separable plunger adapter and compression pad.
  • FIG. 3 is an end view of the distal end of the compression pad of FIG. 1 .
  • FIG. 4 is an end view of the distal end of an alternate compression pad for the device of FIG. 1 .
  • FIG. 5 is an end view of the distal end of another alternate compression pad for the device of FIG. 1 .
  • FIG. 6 is a perspective view of a piston driven chest compression device engaging a patient with an orientation and defibrillation pad.
  • FIG. 7 is a perspective view of a piston driven chest compression device with the compression pad of FIG. 4 .
  • FIG. 8 is a perspective view of a piston driven chest compression device with the proximal end of the compression pad including multiple integrated suction cups.
  • FIG. 9 is a side view of a plunger adapter and compression pad.
  • FIG. 10 is an end view of the distal end of a plunger adapter with a frusto-conical socket.
  • FIG. 11 is an end view of the proximal end of a compression pad with an extension corresponding to the frusto-conical socket of the plunger adapter of FIG. 9 .
  • FIG. 12 is an end view of the distal end of the compression pad of FIG. 9 .
  • FIG. 13 is a side view of an alternate plunger adapter and compression pad.
  • FIG. 14 is an end view of the distal end of the plunger adapter of FIG. 13 .
  • FIG. 15 is an end view of the proximal end of a compression pad with an extension corresponding to the plunger adapter of FIG. 13 .
  • FIG. 16 is an end view of the distal end of the compression pad of FIG. 13 .
  • FIG. 17 is a perspective view of a piston driven chest compression device with a multi-lobed compression pad engaging a patient with an orientation and defibrillation pad.
  • FIG. 18 is an end view of the distal end of the compression pad of FIG. 17 .
  • FIG. 19 is an end view of the distal end of an alternate multi-lobed compression pad.
  • FIG. 20 is a side view of the compression pad of FIG. 19 .
  • FIG. 21 is a perspective view of an alternate compression pads with five appendages.
  • FIG. 22 is a perspective view of another alternate compression pad with three appendages.
  • FIGS. 1 and 2 illustrate a piston-based chest compression device installed on a patient.
  • mechanical chest compression device 10 is oriented to apply compressions to the anterior surface of chest 2 of patient 1.
  • Chest compression device 10 includes support structure 11 which supports and orients chest compression unit 12 apposing sternum 2 A. Support structure 11 may be subdivided into legs 11 A and 11 B and back plate 11 C.
  • Chest compression unit 12 includes any suitable drive means such as motor 13 which may be a reversible electromotor, a linear actuator or the like.
  • Plunger 14 has a distal end 14 D and a proximal end 14 P, and proximal end 14 P of the plunger is operably coupled to motor 13 .
  • the plunger extends from and withdraws into the housing upon operation of motor 13 , and the distal end 14 D of plunger impacts the patient's chest.
  • a motor control unit such as controller 15 is operably connected to motor 13 and may include a microprocessor to control the operation of the motor and the plunger.
  • a compression pad 17 (referred to as a compression component by Sibelius) with two or more suction cups 19 applies compression and decompression force to patient 1.
  • support structure 11 may also have a single leg or post which supports a chest compression unit cantilevered over the patient.
  • compression pad 17 is removably secured to the patient's chest at force application location 18 , which is in a superior position relative to sternal notch 2N as illustrated in FIG. 2 .
  • Compression pad 17 may be secured to the patient by suction created by the suction cups 19 formed on distal end 17 D.
  • the mechanical chest compression device 10 is oriented around the patient's chest 2 with chest compression unit 12 apposing compression pad 17 .
  • Plunger 14 is extended to confirm proper siting of compression pad 17 on the patient and to confirm mating and orientation of plunger adapter 16 with compression pad 17 .
  • controller 15 is instructed, through any suitable interface such as interface 12 A, to perform cyclic compressions and decompressions for CPR.
  • Distal end 17 D of compression pad 17 may adapt any suitable number and configuration of suction cups as illustrated in FIGS. 3 , 4 and 5 .
  • Compression pad 20 includes suction cups 22 which are generally the same size and shape and oriented to maintain cup rims 23 in rim plane 24 .
  • Rim plane 24 may be curved and may adopt any suitable shape to optimize suction for each of cups 22 .
  • Compression pad 27 may include many small suction cups, such as suction cups 28 , to control the amount of suction provided by any single suction cup and to minimize the likelihood that loss of suction by any single suction cup will eliminate the decompression force of the chest compression device.
  • Alternate compression pad 30 illustrates a combination of sizes and shapes of suction cups such as round suction cups 31 , oval suction cups 32 and small suction cups 33 to provide a controlled and predictable amount of decompression force.
  • Multiple suction cups and the use of small size suction cups permits the compression pad and the suction cups to conform to complex 3-D surfaces and it also prevents loss of suction by the suction cups at areas of varying or uneven contour on the patient's chest such as occur in the area of the sternal notch.
  • Chest compression and decompression performed by mechanical chest compression device 10 may incorporate compression orientation pad 40 .
  • Compression orientation pad 40 may be configured to perform multiple functions and include additional elements such as ECG electrodes 41 as well as defibrillation pads 42 as well as any other suitable components.
  • Compression orientation for chest compression device 10 is provided by compression target 43 which is secured to location 18 by a rescuer before initiation of mechanical chest compression/decompression.
  • Compression orientation pad 40 is secured to the patient's chest using any suitable adhesive such as adhesive 45 forming a layer between pad 40 and chest 2 .
  • Compression orientation pad 40 may be formed of one or more layers such as layer 46 which provides structural strength and distributes the compression/decompression forces to the entire area of compression target 43 .
  • Sections of pad 40 such as compression target 43 may have additional layers such as top or upper layer 47 which includes a resilient and smooth, surface 47 X to optimize the formation of suction in the suction cups of the compression pad used, such as the device illustrated in FIG. 7 .
  • Mechanical chest compression device 50 includes compression pad 52 with three round suction cups 53 formed on distal end of the compression pad.
  • Compression orientation pads may include compression targets sized and configured to accommodate various configurations of compression pads such as those illustrated in FIGS. 3 , 4 , 5 , 7 and 8 .
  • Mechanical chest compression device 60 includes compression pad 62 with one or more irregularly shaped suction cups 63 and one or more circular suction cups 64 formed on distal end of the compression pad.
  • Compression pads with two or more suction cups may be readily combined with cooperating plunger adapters and compression pads as disclosed in our copending U.S. patent application Ser. No. 13/629,434 filed Sep. 27, 2012 which is incorporated herein by reference in its entirety.
  • plunger adapter 70 has a height or anterior posterior dimension 70 D and compression pad 71 has a height or anterior posterior dimension 71 D.
  • Proximal end 70 P of plunger adapter 70 is removably secured to distal end 72 D of plunger 72 using any suitable technique such as mating threads, keyed slots, friction engagement such as socket 70 S engaging plunger distal end 72 D or any other technique.
  • Compression pad 71 includes extensions such as extension 73 sized to engage a comparably sized socket such as socket 74 in any suitable plunger adapter such as plunger adapter 70 .
  • the inner surfaces, surface 74 A and surface 74 B, of a plunger adapter socket such as socket 74 may include an adhesive or coating such as adhesive layer 75 with a preselected level of adhesion to maintain a limited engagement between a plunger adapter, such as adapter 70 , and a compression pad such as compression pad 71 , to produce a preselected level of decompression during each retraction of the plunger while performing automated chest compressions to limit or eliminate damage to the patient.
  • Adhesive layer 75 may also be applied to compression pad surfaces 73 A and or 73 B.
  • Compression pad 71 is a generally incompressible pad configured to adapt to the shape of the patient's chest.
  • a compression pad such as compression pad 71 may be formed of one or more layers such as first layer 71 A and second layer 71 B to optimize the application of compressive force to the patient.
  • the proximal or upper end of the compression pad is a generally hard extension or socket such as extension layer 73 for engaging the plunger adapter.
  • the first or central layer, layer 71 A may be a flexible and incompressible layer to conform to the shape of the patient's chest.
  • the lower or distal end, second layer 71 B, of the compression pad is flexible to adapt to the shape of the patient's chest and may include one or more flexible cups, suction cups 76 , for creating one or more areas of vacuum between the compression pad and the patient's chest in suction cup volume 77 .
  • a sticker or other pad and the proximal ends of the suction cups are pressed during chest compression, the volume of the space, suction cup volume 77 , within the suction cup and the chest or sticker surface is reduced, which causes the fluid, air, between the cup and the chest to be expelled past the rims of the suction cups.
  • the material of the compression pad tends to resume its original shape. Because some or all of the air has already been forced out of suction cup volume 77 , the pressure in each of the suction cup spaces is lower that atmospheric pressure which enables the compression pad to exert some decompression force on the patient's chest.
  • the pressure developed by a suction cup is a function of the area of the suction cup. Using multiple suction cups on a compression pad enables the pressure of each suction cup is kept low while the combined decompression force of all the suction cups of a compression pad is high enough to provide meaningful chest decompression. Using 10 or more suction cups enables balancing the suction force of multiple small suction cups against the total force for all the suction cups on a compression pad eliminates injury to a patient's chest that may occur with a single large suction cup.
  • Any suitable smooth sticker sheet or pad such as compression orientation pad 40 or sticker 78 may be removably adhered to a patient's chest to provide smooth surface 78 A to optimize the suction between each suction cup and the sticker sheet.
  • Suitable engagement mechanisms may be included in the plunger and the plunger adapter to provide a preselected level of chest expansion force in addition to chest compression force.
  • a magnet may be provided in the distal end of the plunger and a corresponding magnet or ferrous material may be included in the proximal end of the plunger adapter to provide a preselected retention force between the plunger and the plunger adapter.
  • the retention force is selected to provide some expansion force to the patient's chest between compressions without applying enough expansion force to the patient's chest to tear the patient's skin or underlying tissue.
  • an electromagnet may be provided in distal end of the plunger to provide an adjustable level of retention force, or to provide timed release of the plunger adapter from the plunger.
  • plunger adapter 80 includes socket 81 that is sized and dimensioned to engage extension 82 of compression pad 83 .
  • Compression pad 83 includes suction cups of varying sizes and configurations such as first suction cups 84 , second suction cups 85 and third suction cups 86 . The relative sizes, orientation and combinations of sizes and orientation of the suction cups is selected to optimize the compression force, the decompression force provided by the compression pad.
  • magnets such as adapter magnet 80 M and compression magnet 83 M may be included in plunger adapter 80 and compression pad 83 to provide the predetermined retention force, such as force of attraction or magnetic force 89 , to hold compression pad 83 to plunger adapter 80 until the predetermined decompression force is exceeded.
  • the predetermined level of decompression force is selected to be at a level below which, the chest tissue at force application location 19 will not be damaged before compression pad 83 releases from plunger adapter 80 .
  • Any other suitable technique for providing a predetermined level of retention force 89 may be used such as electromagnetic attraction, frictional engagement or others. Any other suitable cooperative configurations of socket and extension may be used.
  • a compression pad such as compression pad 90 of FIGS. 17 and 18 may adapt any suitable complex shape such as shape 91 with multiple appendages, arms or lobes 92 .
  • Distal end 90 D of compression pad 90 contain numerous suction cups 94 .
  • the use of multiple lobes enables a compression pad with many suction cups to conform to the irregular and complex three-dimensional shapes of patient chest surfaces.
  • Multiple lobes 92 are conformable and inelastic to convey the decompression force between mechanical chest compression device 95 and the anterior surface 2 of the patient's thorax 3 , or any sticker or pad adhered to the patient's chest such as compression orientation pad 40 .
  • Arms or lobes 92 should be secured to the patient, no lower than the inferior margin of the ribcage and generally constrained to the skin superficial to the anterior surface of the ribcage.
  • Compression pad 100 of FIGS. 19 and 20 has an irregular shape 101 with five lobes 102 .
  • Compression pad 100 includes rigid pad 103 on proximal end 100 P to apply compressive force to the patient's chest while flexible and inextensible lobes 102 optimize the application of decompression force to a patient.
  • Distal end 100 D includes a multiple suction cups 94 of generally similar size and shape, evenly distributed over the distal end.
  • compression pads may adopt any suitable shape with two or more lobes.
  • Compression pad 106 of FIG. 21 includes five lobes with lobes 107 A and 107 B having a different size and shape from lobe 107 C, which is again different from lobes 107 D and 107 E.
  • compression pads may include a rigid pad 108 to transfer compression energy from plunger 109 to the patient.
  • Compression pad 110 of FIG. 22 includes three lobes and each lobe such as lobe 111 may have a different size and shape from lobe 112 which may also be different than lobe 113 .
  • the lobes may be rotationally oriented or clocked in any suitable orientation 114 to optimize the compression and decompression forces applied to the patient.

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  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Percussion Or Vibration Massage (AREA)
US13/631,289 2012-09-28 2012-09-28 Method and device for performing alternating chest compression and decompression Active 2033-02-06 US8920348B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US13/631,289 US8920348B2 (en) 2012-09-28 2012-09-28 Method and device for performing alternating chest compression and decompression
PCT/US2013/057525 WO2014051934A1 (en) 2012-09-28 2013-08-30 Method and device for performing alternating chest compression and decompression
CN201380055420.3A CN104755058A (zh) 2012-09-28 2013-08-30 用于执行交替的胸部压缩和减压的方法与装置
EP13840819.0A EP2900195A4 (en) 2012-09-28 2013-08-30 METHOD AND DEVICE FOR IMPROVING ALTERNATIVE THORAXOM PRESSION AND DECOMPRESSION
JP2015534508A JP2015533552A (ja) 2012-09-28 2013-08-30 胸部圧迫と減圧を交互に実施するための方法およびデバイス
US14/576,029 US9655809B2 (en) 2012-09-28 2014-12-18 Method and device for performing alternating chest compression and decompression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/631,289 US8920348B2 (en) 2012-09-28 2012-09-28 Method and device for performing alternating chest compression and decompression

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US14/576,029 Continuation US9655809B2 (en) 2012-09-28 2014-12-18 Method and device for performing alternating chest compression and decompression

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US20140094724A1 US20140094724A1 (en) 2014-04-03
US8920348B2 true US8920348B2 (en) 2014-12-30

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US14/576,029 Expired - Fee Related US9655809B2 (en) 2012-09-28 2014-12-18 Method and device for performing alternating chest compression and decompression

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US (2) US8920348B2 (enExample)
EP (1) EP2900195A4 (enExample)
JP (1) JP2015533552A (enExample)
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WO (1) WO2014051934A1 (enExample)

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JP2018532438A (ja) * 2015-09-21 2018-11-08 ゾール メディカル コーポレイションＺＯＬＬ Ｍｅｄｉｃａｌ Ｃｏｒｐｏｒａｔｉｏｎ 胸部コンプライアンスに従う胸部圧迫
WO2020160448A1 (en) 2019-01-31 2020-08-06 Zoll Medical Corporation Systems and methods for determining compression depth and providing feedback during active compression decompressions
US11020312B2 (en) * 2014-06-06 2021-06-01 Physio-Control, Inc. Adjustable piston
USD942027S1 (en) * 2020-09-23 2022-01-25 Jil Sharon Moramarco Heart shaped suction cupping therapy cup
US11246796B2 (en) 2014-06-06 2022-02-15 Physio-Control, Inc. Adjustable piston
US20220062099A1 (en) * 2020-09-03 2022-03-03 Physio-Control, Inc. Mechanical cardio pulmonary resuscitation device having a contact member
EP4566582A4 (en) * 2022-08-02 2025-11-12 Cu Medical Systems Inc CARDIOPULMONARY RESUSCITATION DEVICE PISTON CAP

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